Jane Muthoni Mara said she felt "completely and utterly violated" after sexual torture.
She is demanding compensation for her suffering.
Jane said: "I want the British citizens of today to know what their forefathers did to me and to so many others. These crimes cannot go unpunished and forgotten."
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Singer posted on Facebook that she had taken an overdose and hidden in a hotel.
After decades of struggling negotiations both activists and delegates are hoping for some form of landmark agreement.
World Rugby chairman Bernard Lapasset led the tributes, calling Lomu 'a giant' of the game.